mirror of
https://github.com/heygen-com/hyperframes.git
synced 2026-09-01 19:42:03 +00:00
Miguel ÁngelandMiguel Angel Simon Sierra
1ae2067b8d
* feat(catalog): put the variables panel back, on payloads The panel drove its preview by loading an .html from docs/public, a type the host does not publish, so it showed an empty frame in production and was parked when the catalog was re-landed. It now mounts the same JSON payload the plain player uses and re-mounts it as values change, injecting them as window.__hfVariables into the composition head before any of its scripts run, which is where the runtime reads overrides from. Doing it in the markup rather than after load is what stops the composition initialising with the wrong values first. 172 items with variables get the panel back; the playhead carries across a change so a tweak mid-shot does not jump back to frame zero. * fix(docs): drop the unused url form and the needless escapes * fix(docs): the panel cannot reference a binding beside the export * feat(catalog): make importing an SVG the obvious move A reader arrives at this control with a shape, not with path data, and the panel asked for the coordinates first. Import is now the primary action in a drop target you can see is a drop target, and the raw path sits behind a disclosure for anyone who wants it. * feat(cli): let a fruitless catalog search report the gap An agent that searches by meaning and finds nothing worth installing knows something we do not: the name of a move the catalog is missing. There was no way to tell us, so that knowledge was lost at the end of every run. hyperframes feedback --search-miss "<query>" --wanted "<the move>" records it. It carries no rating, so it never lands in the rating metric, and it is a separate deliberate command rather than something catalog --query does on its own: plain search still sends nothing, which is what the CLI promises. --rating stops being required at the arg level, since a miss has no rating to give. The check moved into the run body, where an absent one is now handled rather than crashing on undefined. * feat(cli): carry tuned variable values into the install snippet Someone who tunes a block on its catalog page had no way to keep those values: the install command was the same one everybody gets, and the tuning stayed on the page. hyperframes add <item> --vars '<json>' now prints a mount element carrying data-variable-values, so the values land where the block is used. They ride on the host rather than being written into the installed file. That keeps the composition on disk byte-identical to the registry's, so a later reinstall can still tell an edit from an update, and it lets two mounts of the same block carry different values. * fix(catalog): serve the item's own directory so runtime paths resolve Some compositions assemble their asset URLs at run time — "compositions/components/" + texture + ".png" for the texture masks, a font the compiler pulled into _remote_media — and no scan of the markup can see a string that does not exist until a script concatenates it. Those items either rendered black or were dropped to a video that had never been uploaded. Each item that needs it now has its prepared directory published, and its payload carries a <base> pointing at it, so any relative path the composition invents resolves. caption-texture renders its masks again, and variable-font-flex has a preview at all for the first time: its MP4 and poster are both 403. Both layouts are published, because which one a composition asks for differs per item, and a directory only earns that if it is under 2 MB. The 12 MB texture sheet keeps the recorded video it already had. * fix(catalog): let the variables panel actually drive the composition Every control on the panel was inert. The values reached the composition and nothing repainted, because the payload had already been compiled: compiling inlines a mounted component and resolves its variables into the markup and CSS, so by the time a reader turns a knob there is nothing left to change. An item that declares variables now ships uncompiled, keeping the mount the runtime loads at run time, which is the only state where data-variable-values still means anything. The component travels inline as a data URI rather than a sibling file, because .html is the one type the docs host will not publish. The demo's own pinned values come off, so the reader's choices reach the mount instead of losing to the values the demo picked to show itself off. Measured on the rendered frame rather than the DOM: green rgb(98,207,144), blue rgb(6,6,199), violet rgb(177,147,230), and back to green. docs/public/catalog drops from 48 MB to 35 MB along the way, since an uncompiled payload carries far less than an inlined one. * feat(catalog): keep variable changes in the url A reader who tuned a piece lost it on reload, and had nothing to send anyone. The values now live in the query string, scoped by composition id so two links never read each other,and only the ones that differ from the defaults are written, so changing one knob gives a short URL rather than every variable spelled out. replaceState rather than pushState: dragging a slider should not leave a trail of history entries. An unreadable value is ignored rather than thrown, so a truncated or hand-edited link opens the piece at its defaults. * fix(catalog): only rewrite the url when a value actually changed * refactor(catalog): memoise the declared defaults on their content * feat(catalog): offer an install command carrying the tuned values The Install block is generated before anyone touches a knob, so it can only ever print the plain command. Someone who spent a minute tuning a piece copied it and got the defaults back. The panel now carries its own command in the Snippet tab, with --vars holding exactly the values that differ. An untouched piece still offers the same short command, so nothing gets noisier for the common case. * fix(catalog): a piece with nothing to render is a skip, not a failure caption-blend-difference is a stylesheet and a paragraph of prose — a class you add to your own captions, with no standalone scene to show. The generator treated that as a build failure, so every run ended by reporting something broken when nothing was. It now reports the shape it is and keeps its recorded video, which is the only honest preview such an item has. A genuine render failure still throws. * fix(catalog): restore variables from the url on a cold load A shared link opened at the defaults. The first render happens on the server, where there is no window to read the query string from, and React then hydrates against that markup and never revisits it — so the values only appeared once you touched a control. The URL is read again after mount, which is the first moment it exists. The value is also escaped once now rather than twice: URLSearchParams already decodes on the way out, and decoding a second time turned an SVG path full of percent-escapes into something that no longer parsed, besides doubling the length of every link. * fix(catalog): mount the preview with the values a link carried The frame was built from the declared defaults and the shared values were posted to it afterwards, which is too late for anything the composition reads once at init: a path arrived after the mark had already been drawn from the default one, so a link looked right in the panel and wrong on screen. * feat(catalog): the install command follows the values you tuned Copying the Install line gave the plain command back, because that block is generated before anyone touches a knob and had no way to know what changed. The tuned command only existed in the panel Snippet tab, which is not where anyone looks for it. The line now reads the same query string the panel writes, so the two agree without either component knowing the other exists, and a shared link carries the right command too. replaceState fires no event, so the panel announces its own writes. * fix(catalog): send a text variable to the preview once it is finished Every other control in the explorer reports a whole value on every event: a slider at any position is a position, a swatch is a colour. A text field is not. Typing v3 into a badge posted v first, so the preview remounted and rendered a composition built from half a word. The post now waits while a text field has focus and goes out when the edit is committed, with Enter or by clicking away. The field itself is unchanged and still tracks every keystroke. --------- Co-authored-by: Miguel Angel Simon Sierra <miguelangelsi07@gmail.com>
931 lines
36 KiB
Plaintext
931 lines
36 KiB
Plaintext
---
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title: "Multiplayer Cursors"
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description: "Labeled collaborator cursors with token-derived colors and soft glows drift from spread positions into a shared center zone, proving live multiplayer presence."
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---
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import { InstallCommand } from "/snippets/install-command.jsx";
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import { VariablesExplorer } from "/snippets/variables-explorer.jsx";
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<VariablesExplorer
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previewSrc="/public/catalog/components/multiplayer-cursors.json"
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compositionId="multiplayer-cursors"
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compositionSrc="compositions/components/multiplayer-cursors.html"
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variables={[{"id":"cursorCount","type":"number","role":"content","label":"Cursor count","description":"Number of labeled collaborator cursors.","default":4,"min":2,"max":6,"step":1},{"id":"labels","type":"string","role":"content","label":"Labels","description":"Comma-separated cursor names, in order.","default":"Ana,Ken,Wen,Mia"}]}
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>
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```html multiplayer-cursors.html
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<!doctype html>
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<!--
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multiplayer-cursors, HyperFrames video primitive (pointers / loop / prove)
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Concept: labeled collaborator cursors, each with an SVG pointer, matching
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name chip, and soft color glow, reveal from spread positions and glide into
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a shared center zone. Their gentle authored drift makes live multiplayer
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presence visible without requiring a product-specific subject.
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Compiled-from evidence: power-reel source 15-frosted-cursors.html
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(production 60s reel, 2026-07). This extracts the deterministic labeled
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cursor mechanic and patches the multiplayer-arrows hole predicted by the
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pointers family definition. It does not carry over that reel's subject,
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background workspace, frosted chip, real pointer, or You cursor.
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Use when: proving that a canvas, document, board, or workspace supports live
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collaboration, shared presence, or multiple people editing together.
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Variables (declared in data-composition-variables below):
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- cursorCount (number, default 4, range 2 to 6): visible collaborators.
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- labels (string, default "Ana,Ken,Wen,Mia"): comma-separated names in
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cursor order. Missing or blank entries become deterministic Guest names.
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Envelope (fixed IN/OUT, elastic HOLD only, never gsap.timeScale()):
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IN_BASE = 0.70s layer settles in and cursors reveal with a fixed stagger
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HOLD = elastic = max(0, D - (IN_BASE + OUT_BASE)); cursors converge,
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then drift between authored center-zone points for a finite
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number of sine.inOut legs that exactly fill the available time
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OUT_BASE = 0.50s layer accelerates into a clean fade
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If D < IN_BASE + OUT_BASE, IN and OUT scale down together so IN + OUT == D
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and HOLD == 0.
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Sync point: none. This ambient collaboration loop has no causal action or
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fixed event that another primitive needs to synchronize with.
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Sound cue: none. The cursor motion is ambient and dispatches no hf:sfx event.
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Mount contract: this file is a mountable sub-composition. A host loads it via
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data-composition-src, and the runtime clones only <template> contents. The
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root carries no data-width/data-height. It fills the host slot with
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position:absolute, inset:0, and container-type:size, so every measurement can
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stay container-relative. The root is styled by #root, never by a class. The
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hardcoded timeline key remains "multiplayer-cursors" after mount flattening
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strips data-composition-id from the mounted root. Variables come only from
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window.__hyperframes.getVariables(), which owns merged defaults and host
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overrides inside a mounted composition.
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-->
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<html
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lang="en"
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data-composition-variables='[
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{ "id": "cursorCount", "type": "number", "role": "content", "label": "Cursor count", "description": "Number of labeled collaborator cursors.", "default": 4, "min": 2, "max": 6, "step": 1 },
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{ "id": "labels", "type": "string", "role": "content", "label": "Labels", "description": "Comma-separated cursor names, in order.", "default": "Ana,Ken,Wen,Mia" }
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]'
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>
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<head>
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<meta charset="UTF-8" />
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<title>Multiplayer Cursors</title>
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<!-- Metadata only. Mounting discards everything outside <template>. -->
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</head>
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<body>
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<template>
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<div id="root" data-composition-id="multiplayer-cursors" data-duration="6" data-fps="30">
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<style>
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*,
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*::before,
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*::after {
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box-sizing: border-box;
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}
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/* Root: elastic and position-blind. The host owns its box. Styled by
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#root so composition scoping continues to match after mounting. */
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#root {
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position: absolute;
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inset: 0;
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container-type: size;
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isolation: isolate;
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overflow: hidden;
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color: var(--fg, #f8fafc);
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font-family: var(--font-body, Inter, system-ui, sans-serif);
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}
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.mc-clip,
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.mc-stage,
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.mc-layer {
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position: absolute;
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inset: 0;
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width: 100%;
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height: 100%;
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}
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.mc-stage {
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transform-origin: center;
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}
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/* EDIT ZONE: the focus ring is only a neutral convergence landmark.
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Keep it secondary to the cursors and derived from theme tokens. */
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.mc-focus {
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position: absolute;
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left: 50%;
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top: 50%;
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width: 15cqw;
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aspect-ratio: 1;
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border: 0.18cqw solid color-mix(in srgb, var(--border, #334155) 72%, transparent);
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border-radius: var(--radius, 999cqw);
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background: radial-gradient(
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circle,
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color-mix(in srgb, var(--surface, #1e293b) 78%, transparent) 0 28%,
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color-mix(in srgb, var(--brand, #22c55e) 18%, transparent) 30% 48%,
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transparent 70%
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);
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box-shadow:
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0 0 8cqw color-mix(in srgb, var(--accent, #38bdf8) 16%, transparent),
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inset 0 0 2.4cqw color-mix(in srgb, var(--brand, #22c55e) 16%, transparent);
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transform: translate(-50%, -50%);
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opacity: 0.78;
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}
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.mc-focus::after {
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content: "";
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position: absolute;
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left: 50%;
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top: 50%;
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width: 1.35cqw;
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aspect-ratio: 1;
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border-radius: var(--radius, 999cqw);
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background: var(--brand, #22c55e);
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box-shadow: 0 0 2.4cqw color-mix(in srgb, var(--brand, #22c55e) 55%, transparent);
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transform: translate(-50%, -50%);
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}
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.mc-layer {
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z-index: 2;
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}
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/* INVARIANT: each cursor is a sized block. GSAP owns only x, y,
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rotation, scale, and opacity, so seeked spatial state is stable. */
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.mc-cursor {
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position: absolute;
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left: 0;
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top: 0;
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display: block;
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width: 20cqw;
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height: 10cqh;
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color: var(--mc-color, var(--brand, #22c55e));
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transform-origin: 0 0;
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will-change: transform, opacity;
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}
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.mc-cursor[data-tone="0"] {
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--mc-color: var(--brand, #22c55e);
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}
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.mc-cursor[data-tone="1"] {
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--mc-color: var(--accent, #38bdf8);
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}
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.mc-cursor[data-tone="2"] {
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--mc-color: color-mix(
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in oklch longer hue,
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var(--brand, #22c55e) 72%,
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var(--accent, #38bdf8)
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);
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}
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.mc-cursor[data-tone="3"] {
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--mc-color: color-mix(
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in oklch longer hue,
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var(--brand, #22c55e) 44%,
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var(--accent, #38bdf8)
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);
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}
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.mc-cursor[data-tone="4"] {
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--mc-color: color-mix(in oklch, var(--brand, #22c55e) 38%, var(--accent, #38bdf8));
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}
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.mc-cursor[data-tone="5"] {
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--mc-color: color-mix(in srgb, var(--accent, #38bdf8) 68%, var(--fg, #f8fafc));
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}
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.mc-glow {
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position: absolute;
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left: -6.5cqw;
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top: -6.5cqw;
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z-index: -1;
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width: 16cqw;
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aspect-ratio: 1;
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border-radius: var(--radius, 999cqw);
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background: radial-gradient(
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circle,
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color-mix(in srgb, var(--mc-color, var(--brand, #22c55e)) 44%, transparent),
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transparent 72%
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);
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filter: blur(1.4cqw);
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opacity: 0.58;
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}
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.mc-pointer {
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position: absolute;
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left: 0;
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top: 0;
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display: block;
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width: 4.8cqw;
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height: 4.8cqw;
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filter: drop-shadow(
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0 0.45cqw 0.7cqw color-mix(in srgb, var(--bg, #0b1120) 58%, transparent)
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);
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}
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.mc-pointer path {
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fill: currentColor;
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stroke: var(--fg, #f8fafc);
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stroke-width: 1.35;
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stroke-linejoin: round;
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}
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.mc-label {
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position: absolute;
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left: 3.45cqw;
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top: 3.55cqw;
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display: block;
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max-width: 15cqw;
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overflow: hidden;
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padding: var(--space-1, 0.7cqw) var(--space-2, 1.25cqw);
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border: 0.12cqw solid color-mix(in srgb, var(--fg, #f8fafc) 30%, transparent);
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border-radius: var(--radius, 1.2cqw);
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border-top-left-radius: 0.32cqw;
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background: color-mix(
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in srgb,
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var(--mc-color, var(--brand, #22c55e)) 84%,
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var(--surface, #1e293b)
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);
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color: var(--fg, #0b1120);
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font-family: var(--font-display, Inter, system-ui, sans-serif);
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font-size: 2.15cqw;
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font-weight: 720;
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line-height: 1;
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letter-spacing: 0.01em;
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text-overflow: ellipsis;
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white-space: nowrap;
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box-shadow:
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0 0.65cqw 1.5cqw color-mix(in srgb, var(--bg, #0b1120) 32%, transparent),
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inset 0 0.12cqw 0 color-mix(in srgb, var(--fg, #f8fafc) 22%, transparent);
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}
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</style>
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<div
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id="multiplayer-cursors-clip"
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class="mc-clip clip"
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data-start="0"
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data-duration="6"
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data-track-index="0"
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>
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<div class="mc-stage">
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<div class="mc-focus" aria-hidden="true"></div>
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<div class="mc-layer" aria-hidden="true"></div>
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</div>
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</div>
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<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
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<script>
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(function () {
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"use strict";
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var root = document.currentScript.closest("#root") || document.getElementById("root");
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// Literal by contract: mount flattening strips data-composition-id
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// from the mounted inner root before this registration is consumed.
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var compositionId = "multiplayer-cursors";
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var stage = root.querySelector(".mc-stage");
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var layer = root.querySelector(".mc-layer");
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// EDIT ZONE: variable defaults mirror the outer declaration.
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// getVariables owns the declared-defaults-plus-host-overrides merge.
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var vars =
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window.__hyperframes && window.__hyperframes.getVariables
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? window.__hyperframes.getVariables()
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: {};
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// INVARIANT: count is always an integer in the declared 2 to 6 range.
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var rawCount = Number(vars.cursorCount);
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var cursorCount = Math.max(
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2,
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Math.min(6, Number.isFinite(rawCount) ? Math.round(rawCount) : 4),
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);
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var rawLabels = vars.labels == null ? "Ana,Ken,Wen,Mia" : String(vars.labels);
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var parsedLabels = rawLabels.split(",").map(function (label) {
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return label.trim();
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});
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// Authored percentages are the single source for every path. Each
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// row is start, gather, drift, then the matching rotations.
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var WAYPOINTS = [
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{ start: [10, 16], gather: [42, 40], drift: [46, 36], rotation: [-10, 2, 6] },
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{ start: [66, 12], gather: [52, 38], drift: [58, 42], rotation: [8, -3, 4] },
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{ start: [76, 38], gather: [57, 49], drift: [54, 55], rotation: [12, 3, -4] },
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{ start: [64, 76], gather: [53, 59], drift: [48, 57], rotation: [-8, 4, -3] },
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{ start: [20, 76], gather: [43, 60], drift: [38, 55], rotation: [9, -4, 5] },
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{ start: [7, 46], gather: [38, 50], drift: [42, 45], rotation: [-12, 3, -5] },
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];
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var POINTER_SVG =
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'<svg class="mc-pointer" viewBox="0 0 24 24" fill="none"><path d="M5.5 3.21V20.8c0 .45.54.67.85.35l4.86-4.86a.5.5 0 0 1 .35-.15h6.87c.48 0 .72-.58.38-.92L5.94 2.47a.5.5 0 0 0-.44.74Z" /></svg>';
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var cursors = [];
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for (var index = 0; index < cursorCount; index += 1) {
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var cursor = document.createElement("div");
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cursor.className = "mc-cursor";
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cursor.dataset.tone = String(index);
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cursor.innerHTML = '<span class="mc-glow"></span>' + POINTER_SVG;
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var label = document.createElement("span");
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label.className = "mc-label";
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label.textContent = parsedLabels[index] || "Guest " + (index + 1);
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cursor.appendChild(label);
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layer.appendChild(cursor);
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cursors.push({ element: cursor, path: WAYPOINTS[index] });
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}
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// RETIME RANGE: fixed envelope values and authored motion cadence.
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// HOLD alone expands. Finite drift legs are floored, then stretched
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// evenly to fill their remaining window without overshooting OUT.
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var IN_BASE = 0.7;
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var OUT_BASE = 0.5;
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var STAGE_IN_BASE = 0.42;
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var REVEAL_BASE = 0.26;
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var REVEAL_STAGGER_BASE = 0.055;
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var MOVE_STAGGER_BASE = 0.035;
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var CONVERGE_BASE = 1.35;
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var beat = parseFloat(getComputedStyle(root).getPropertyValue("--dur-beat")) || 0.55;
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var DRIFT_LEG_BASE = Math.max(0.55, beat * 1.45);
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|
|
var duration = Math.max(0.001, parseFloat(root.dataset.duration || "6"));
|
|
var totalBase = IN_BASE + OUT_BASE;
|
|
var envelopeScale = duration < totalBase ? duration / totalBase : 1;
|
|
var IN = IN_BASE * envelopeScale;
|
|
var OUT = OUT_BASE * envelopeScale;
|
|
var STAGE_IN = STAGE_IN_BASE * envelopeScale;
|
|
var REVEAL = REVEAL_BASE * envelopeScale;
|
|
var REVEAL_STAGGER = REVEAL_STAGGER_BASE * envelopeScale;
|
|
var MOVE_STAGGER = MOVE_STAGGER_BASE * envelopeScale;
|
|
var HOLD = Math.max(0, duration - (IN + OUT));
|
|
var HOLD_START = IN;
|
|
var OUT_START = IN + HOLD;
|
|
var CONVERGE = Math.min(CONVERGE_BASE * envelopeScale, HOLD);
|
|
var DRIFT_START = HOLD_START + CONVERGE;
|
|
var DRIFT_WINDOW = Math.max(0, HOLD - CONVERGE);
|
|
|
|
gsap.set(stage, { opacity: 0, scale: 0.97 });
|
|
cursors.forEach(function (cursor) {
|
|
gsap.set(cursor.element, {
|
|
x: cursor.path.start[0] + "cqw",
|
|
y: cursor.path.start[1] + "cqh",
|
|
rotation: cursor.path.rotation[0],
|
|
opacity: 0,
|
|
scale: 0.92,
|
|
});
|
|
});
|
|
|
|
var tl = gsap.timeline({ paused: true });
|
|
|
|
// IN: emphatic layer settle and deterministic per-cursor reveal.
|
|
tl.to(stage, { opacity: 1, scale: 1, duration: STAGE_IN, ease: "power3.out" }, 0);
|
|
cursors.forEach(function (cursor, index) {
|
|
tl.to(
|
|
cursor.element,
|
|
{ opacity: 1, scale: 1, duration: REVEAL, ease: "power2.out" },
|
|
index * REVEAL_STAGGER,
|
|
);
|
|
});
|
|
|
|
// HOLD: authored sine convergence, then a finite center-zone loop.
|
|
if (CONVERGE > 0) {
|
|
cursors.forEach(function (cursor, index) {
|
|
var moveDelay = Math.min(index * MOVE_STAGGER, CONVERGE * 0.35);
|
|
tl.to(
|
|
cursor.element,
|
|
{
|
|
x: cursor.path.gather[0] + "cqw",
|
|
y: cursor.path.gather[1] + "cqh",
|
|
rotation: cursor.path.rotation[1],
|
|
duration: Math.max(0.001, CONVERGE - moveDelay),
|
|
ease: "sine.inOut",
|
|
},
|
|
HOLD_START + moveDelay,
|
|
);
|
|
});
|
|
}
|
|
|
|
if (DRIFT_WINDOW >= DRIFT_LEG_BASE) {
|
|
cursors.forEach(function (cursor, index) {
|
|
var driftDelay = Math.min(index * MOVE_STAGGER, DRIFT_WINDOW * 0.12);
|
|
var cursorWindow = Math.max(0, DRIFT_WINDOW - driftDelay);
|
|
var driftLegCount = Math.max(1, Math.floor(cursorWindow / DRIFT_LEG_BASE));
|
|
var driftLeg = cursorWindow / driftLegCount;
|
|
var driftRepeat = Math.max(0, driftLegCount - 1);
|
|
tl.fromTo(
|
|
cursor.element,
|
|
{
|
|
x: cursor.path.gather[0] + "cqw",
|
|
y: cursor.path.gather[1] + "cqh",
|
|
rotation: cursor.path.rotation[1],
|
|
},
|
|
{
|
|
x: cursor.path.drift[0] + "cqw",
|
|
y: cursor.path.drift[1] + "cqh",
|
|
rotation: cursor.path.rotation[2],
|
|
duration: driftLeg,
|
|
ease: "sine.inOut",
|
|
immediateRender: false,
|
|
yoyo: true,
|
|
repeat: driftRepeat,
|
|
},
|
|
DRIFT_START + driftDelay,
|
|
);
|
|
});
|
|
}
|
|
|
|
// OUT: asymmetric accelerated fade, while HOLD motion resolves.
|
|
tl.to(stage, { opacity: 0, duration: OUT, ease: "power2.in" }, OUT_START);
|
|
|
|
tl.seek(0);
|
|
|
|
window.__timelines = window.__timelines || {};
|
|
window.__timelines[compositionId] = tl;
|
|
})();
|
|
</script>
|
|
</div>
|
|
</template>
|
|
</body>
|
|
</html>
|
|
```
|
|
|
|
</VariablesExplorer>
|
|
|
|
## Install
|
|
|
|
<InstallCommand command="npx hyperframes add multiplayer-cursors" item="multiplayer-cursors" />
|
|
|
|
That writes one file: `compositions/components/multiplayer-cursors.html`.
|
|
|
|
## Paste it into your composition
|
|
|
|
Open `compositions/components/multiplayer-cursors.html` and copy what is inside into your own composition.
|
|
|
|
A component has no size or duration of its own. It takes both from the composition
|
|
you paste it into.
|
|
|
|
## Variables
|
|
|
|
Every one of these has a default, so the piece works untouched. Set the ones you
|
|
want to change on the element:
|
|
|
|
| Variable | Default | Accepts | What it does |
|
|
| --- | --- | --- | --- |
|
|
| `cursorCount` | `4` | 2 to 6, step 1 | Number of labeled collaborator cursors. |
|
|
| `labels` | `Ana,Ken,Wen,Mia` | string | Comma-separated cursor names, in order. |
|
|
|
|
Set them with `data-variable-values` on the element that mounts it. These are the
|
|
defaults, so this behaves exactly like the preview above until you change one:
|
|
|
|
```html wrap
|
|
<div
|
|
data-composition-id="multiplayer-cursors"
|
|
data-composition-src="compositions/components/multiplayer-cursors.html"
|
|
data-variable-values='{"cursorCount":4,"labels":"Ana,Ken,Wen,Mia"}'
|
|
></div>
|
|
```
|
|
|
|
## Source
|
|
|
|
<Accordion title={`multiplayer-cursors.html`}>
|
|
|
|
```html
|
|
<!doctype html>
|
|
<!--
|
|
multiplayer-cursors, HyperFrames video primitive (pointers / loop / prove)
|
|
|
|
Concept: labeled collaborator cursors, each with an SVG pointer, matching
|
|
name chip, and soft color glow, reveal from spread positions and glide into
|
|
a shared center zone. Their gentle authored drift makes live multiplayer
|
|
presence visible without requiring a product-specific subject.
|
|
|
|
Compiled-from evidence: power-reel source 15-frosted-cursors.html
|
|
(production 60s reel, 2026-07). This extracts the deterministic labeled
|
|
cursor mechanic and patches the multiplayer-arrows hole predicted by the
|
|
pointers family definition. It does not carry over that reel's subject,
|
|
background workspace, frosted chip, real pointer, or You cursor.
|
|
|
|
Use when: proving that a canvas, document, board, or workspace supports live
|
|
collaboration, shared presence, or multiple people editing together.
|
|
|
|
Variables (declared in data-composition-variables below):
|
|
- cursorCount (number, default 4, range 2 to 6): visible collaborators.
|
|
- labels (string, default "Ana,Ken,Wen,Mia"): comma-separated names in
|
|
cursor order. Missing or blank entries become deterministic Guest names.
|
|
|
|
Envelope (fixed IN/OUT, elastic HOLD only, never gsap.timeScale()):
|
|
IN_BASE = 0.70s layer settles in and cursors reveal with a fixed stagger
|
|
HOLD = elastic = max(0, D - (IN_BASE + OUT_BASE)); cursors converge,
|
|
then drift between authored center-zone points for a finite
|
|
number of sine.inOut legs that exactly fill the available time
|
|
OUT_BASE = 0.50s layer accelerates into a clean fade
|
|
If D < IN_BASE + OUT_BASE, IN and OUT scale down together so IN + OUT == D
|
|
and HOLD == 0.
|
|
|
|
Sync point: none. This ambient collaboration loop has no causal action or
|
|
fixed event that another primitive needs to synchronize with.
|
|
|
|
Sound cue: none. The cursor motion is ambient and dispatches no hf:sfx event.
|
|
|
|
Mount contract: this file is a mountable sub-composition. A host loads it via
|
|
data-composition-src, and the runtime clones only <template> contents. The
|
|
root carries no data-width/data-height. It fills the host slot with
|
|
position:absolute, inset:0, and container-type:size, so every measurement can
|
|
stay container-relative. The root is styled by #root, never by a class. The
|
|
hardcoded timeline key remains "multiplayer-cursors" after mount flattening
|
|
strips data-composition-id from the mounted root. Variables come only from
|
|
window.__hyperframes.getVariables(), which owns merged defaults and host
|
|
overrides inside a mounted composition.
|
|
-->
|
|
<html
|
|
lang="en"
|
|
data-composition-variables='[
|
|
{ "id": "cursorCount", "type": "number", "role": "content", "label": "Cursor count", "description": "Number of labeled collaborator cursors.", "default": 4, "min": 2, "max": 6, "step": 1 },
|
|
{ "id": "labels", "type": "string", "role": "content", "label": "Labels", "description": "Comma-separated cursor names, in order.", "default": "Ana,Ken,Wen,Mia" }
|
|
]'
|
|
>
|
|
<head>
|
|
<meta charset="UTF-8" />
|
|
<title>Multiplayer Cursors</title>
|
|
<!-- Metadata only. Mounting discards everything outside <template>. -->
|
|
</head>
|
|
<body>
|
|
<template>
|
|
<div id="root" data-composition-id="multiplayer-cursors" data-duration="6" data-fps="30">
|
|
<style>
|
|
*,
|
|
*::before,
|
|
*::after {
|
|
box-sizing: border-box;
|
|
}
|
|
|
|
/* Root: elastic and position-blind. The host owns its box. Styled by
|
|
#root so composition scoping continues to match after mounting. */
|
|
#root {
|
|
position: absolute;
|
|
inset: 0;
|
|
container-type: size;
|
|
isolation: isolate;
|
|
overflow: hidden;
|
|
color: var(--fg, #f8fafc);
|
|
font-family: var(--font-body, Inter, system-ui, sans-serif);
|
|
}
|
|
|
|
.mc-clip,
|
|
.mc-stage,
|
|
.mc-layer {
|
|
position: absolute;
|
|
inset: 0;
|
|
width: 100%;
|
|
height: 100%;
|
|
}
|
|
|
|
.mc-stage {
|
|
transform-origin: center;
|
|
}
|
|
|
|
/* EDIT ZONE: the focus ring is only a neutral convergence landmark.
|
|
Keep it secondary to the cursors and derived from theme tokens. */
|
|
.mc-focus {
|
|
position: absolute;
|
|
left: 50%;
|
|
top: 50%;
|
|
width: 15cqw;
|
|
aspect-ratio: 1;
|
|
border: 0.18cqw solid color-mix(in srgb, var(--border, #334155) 72%, transparent);
|
|
border-radius: var(--radius, 999cqw);
|
|
background: radial-gradient(
|
|
circle,
|
|
color-mix(in srgb, var(--surface, #1e293b) 78%, transparent) 0 28%,
|
|
color-mix(in srgb, var(--brand, #22c55e) 18%, transparent) 30% 48%,
|
|
transparent 70%
|
|
);
|
|
box-shadow:
|
|
0 0 8cqw color-mix(in srgb, var(--accent, #38bdf8) 16%, transparent),
|
|
inset 0 0 2.4cqw color-mix(in srgb, var(--brand, #22c55e) 16%, transparent);
|
|
transform: translate(-50%, -50%);
|
|
opacity: 0.78;
|
|
}
|
|
|
|
.mc-focus::after {
|
|
content: "";
|
|
position: absolute;
|
|
left: 50%;
|
|
top: 50%;
|
|
width: 1.35cqw;
|
|
aspect-ratio: 1;
|
|
border-radius: var(--radius, 999cqw);
|
|
background: var(--brand, #22c55e);
|
|
box-shadow: 0 0 2.4cqw color-mix(in srgb, var(--brand, #22c55e) 55%, transparent);
|
|
transform: translate(-50%, -50%);
|
|
}
|
|
|
|
.mc-layer {
|
|
z-index: 2;
|
|
}
|
|
|
|
/* INVARIANT: each cursor is a sized block. GSAP owns only x, y,
|
|
rotation, scale, and opacity, so seeked spatial state is stable. */
|
|
.mc-cursor {
|
|
position: absolute;
|
|
left: 0;
|
|
top: 0;
|
|
display: block;
|
|
width: 20cqw;
|
|
height: 10cqh;
|
|
color: var(--mc-color, var(--brand, #22c55e));
|
|
transform-origin: 0 0;
|
|
will-change: transform, opacity;
|
|
}
|
|
|
|
.mc-cursor[data-tone="0"] {
|
|
--mc-color: var(--brand, #22c55e);
|
|
}
|
|
|
|
.mc-cursor[data-tone="1"] {
|
|
--mc-color: var(--accent, #38bdf8);
|
|
}
|
|
|
|
.mc-cursor[data-tone="2"] {
|
|
--mc-color: color-mix(
|
|
in oklch longer hue,
|
|
var(--brand, #22c55e) 72%,
|
|
var(--accent, #38bdf8)
|
|
);
|
|
}
|
|
|
|
.mc-cursor[data-tone="3"] {
|
|
--mc-color: color-mix(
|
|
in oklch longer hue,
|
|
var(--brand, #22c55e) 44%,
|
|
var(--accent, #38bdf8)
|
|
);
|
|
}
|
|
|
|
.mc-cursor[data-tone="4"] {
|
|
--mc-color: color-mix(in oklch, var(--brand, #22c55e) 38%, var(--accent, #38bdf8));
|
|
}
|
|
|
|
.mc-cursor[data-tone="5"] {
|
|
--mc-color: color-mix(in srgb, var(--accent, #38bdf8) 68%, var(--fg, #f8fafc));
|
|
}
|
|
|
|
.mc-glow {
|
|
position: absolute;
|
|
left: -6.5cqw;
|
|
top: -6.5cqw;
|
|
z-index: -1;
|
|
width: 16cqw;
|
|
aspect-ratio: 1;
|
|
border-radius: var(--radius, 999cqw);
|
|
background: radial-gradient(
|
|
circle,
|
|
color-mix(in srgb, var(--mc-color, var(--brand, #22c55e)) 44%, transparent),
|
|
transparent 72%
|
|
);
|
|
filter: blur(1.4cqw);
|
|
opacity: 0.58;
|
|
}
|
|
|
|
.mc-pointer {
|
|
position: absolute;
|
|
left: 0;
|
|
top: 0;
|
|
display: block;
|
|
width: 4.8cqw;
|
|
height: 4.8cqw;
|
|
filter: drop-shadow(
|
|
0 0.45cqw 0.7cqw color-mix(in srgb, var(--bg, #0b1120) 58%, transparent)
|
|
);
|
|
}
|
|
|
|
.mc-pointer path {
|
|
fill: currentColor;
|
|
stroke: var(--fg, #f8fafc);
|
|
stroke-width: 1.35;
|
|
stroke-linejoin: round;
|
|
}
|
|
|
|
.mc-label {
|
|
position: absolute;
|
|
left: 3.45cqw;
|
|
top: 3.55cqw;
|
|
display: block;
|
|
max-width: 15cqw;
|
|
overflow: hidden;
|
|
padding: var(--space-1, 0.7cqw) var(--space-2, 1.25cqw);
|
|
border: 0.12cqw solid color-mix(in srgb, var(--fg, #f8fafc) 30%, transparent);
|
|
border-radius: var(--radius, 1.2cqw);
|
|
border-top-left-radius: 0.32cqw;
|
|
background: color-mix(
|
|
in srgb,
|
|
var(--mc-color, var(--brand, #22c55e)) 84%,
|
|
var(--surface, #1e293b)
|
|
);
|
|
color: var(--fg, #0b1120);
|
|
font-family: var(--font-display, Inter, system-ui, sans-serif);
|
|
font-size: 2.15cqw;
|
|
font-weight: 720;
|
|
line-height: 1;
|
|
letter-spacing: 0.01em;
|
|
text-overflow: ellipsis;
|
|
white-space: nowrap;
|
|
box-shadow:
|
|
0 0.65cqw 1.5cqw color-mix(in srgb, var(--bg, #0b1120) 32%, transparent),
|
|
inset 0 0.12cqw 0 color-mix(in srgb, var(--fg, #f8fafc) 22%, transparent);
|
|
}
|
|
</style>
|
|
|
|
<div
|
|
id="multiplayer-cursors-clip"
|
|
class="mc-clip clip"
|
|
data-start="0"
|
|
data-duration="6"
|
|
data-track-index="0"
|
|
>
|
|
<div class="mc-stage">
|
|
<div class="mc-focus" aria-hidden="true"></div>
|
|
<div class="mc-layer" aria-hidden="true"></div>
|
|
</div>
|
|
</div>
|
|
|
|
<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
|
|
<script>
|
|
(function () {
|
|
"use strict";
|
|
|
|
var root = document.currentScript.closest("#root") || document.getElementById("root");
|
|
// Literal by contract: mount flattening strips data-composition-id
|
|
// from the mounted inner root before this registration is consumed.
|
|
var compositionId = "multiplayer-cursors";
|
|
var stage = root.querySelector(".mc-stage");
|
|
var layer = root.querySelector(".mc-layer");
|
|
|
|
// EDIT ZONE: variable defaults mirror the outer declaration.
|
|
// getVariables owns the declared-defaults-plus-host-overrides merge.
|
|
var vars =
|
|
window.__hyperframes && window.__hyperframes.getVariables
|
|
? window.__hyperframes.getVariables()
|
|
: {};
|
|
|
|
// INVARIANT: count is always an integer in the declared 2 to 6 range.
|
|
var rawCount = Number(vars.cursorCount);
|
|
var cursorCount = Math.max(
|
|
2,
|
|
Math.min(6, Number.isFinite(rawCount) ? Math.round(rawCount) : 4),
|
|
);
|
|
var rawLabels = vars.labels == null ? "Ana,Ken,Wen,Mia" : String(vars.labels);
|
|
var parsedLabels = rawLabels.split(",").map(function (label) {
|
|
return label.trim();
|
|
});
|
|
|
|
// Authored percentages are the single source for every path. Each
|
|
// row is start, gather, drift, then the matching rotations.
|
|
var WAYPOINTS = [
|
|
{ start: [10, 16], gather: [42, 40], drift: [46, 36], rotation: [-10, 2, 6] },
|
|
{ start: [66, 12], gather: [52, 38], drift: [58, 42], rotation: [8, -3, 4] },
|
|
{ start: [76, 38], gather: [57, 49], drift: [54, 55], rotation: [12, 3, -4] },
|
|
{ start: [64, 76], gather: [53, 59], drift: [48, 57], rotation: [-8, 4, -3] },
|
|
{ start: [20, 76], gather: [43, 60], drift: [38, 55], rotation: [9, -4, 5] },
|
|
{ start: [7, 46], gather: [38, 50], drift: [42, 45], rotation: [-12, 3, -5] },
|
|
];
|
|
var POINTER_SVG =
|
|
'<svg class="mc-pointer" viewBox="0 0 24 24" fill="none"><path d="M5.5 3.21V20.8c0 .45.54.67.85.35l4.86-4.86a.5.5 0 0 1 .35-.15h6.87c.48 0 .72-.58.38-.92L5.94 2.47a.5.5 0 0 0-.44.74Z" /></svg>';
|
|
var cursors = [];
|
|
|
|
for (var index = 0; index < cursorCount; index += 1) {
|
|
var cursor = document.createElement("div");
|
|
cursor.className = "mc-cursor";
|
|
cursor.dataset.tone = String(index);
|
|
cursor.innerHTML = '<span class="mc-glow"></span>' + POINTER_SVG;
|
|
|
|
var label = document.createElement("span");
|
|
label.className = "mc-label";
|
|
label.textContent = parsedLabels[index] || "Guest " + (index + 1);
|
|
cursor.appendChild(label);
|
|
layer.appendChild(cursor);
|
|
cursors.push({ element: cursor, path: WAYPOINTS[index] });
|
|
}
|
|
|
|
// RETIME RANGE: fixed envelope values and authored motion cadence.
|
|
// HOLD alone expands. Finite drift legs are floored, then stretched
|
|
// evenly to fill their remaining window without overshooting OUT.
|
|
var IN_BASE = 0.7;
|
|
var OUT_BASE = 0.5;
|
|
var STAGE_IN_BASE = 0.42;
|
|
var REVEAL_BASE = 0.26;
|
|
var REVEAL_STAGGER_BASE = 0.055;
|
|
var MOVE_STAGGER_BASE = 0.035;
|
|
var CONVERGE_BASE = 1.35;
|
|
var beat = parseFloat(getComputedStyle(root).getPropertyValue("--dur-beat")) || 0.55;
|
|
var DRIFT_LEG_BASE = Math.max(0.55, beat * 1.45);
|
|
|
|
var duration = Math.max(0.001, parseFloat(root.dataset.duration || "6"));
|
|
var totalBase = IN_BASE + OUT_BASE;
|
|
var envelopeScale = duration < totalBase ? duration / totalBase : 1;
|
|
var IN = IN_BASE * envelopeScale;
|
|
var OUT = OUT_BASE * envelopeScale;
|
|
var STAGE_IN = STAGE_IN_BASE * envelopeScale;
|
|
var REVEAL = REVEAL_BASE * envelopeScale;
|
|
var REVEAL_STAGGER = REVEAL_STAGGER_BASE * envelopeScale;
|
|
var MOVE_STAGGER = MOVE_STAGGER_BASE * envelopeScale;
|
|
var HOLD = Math.max(0, duration - (IN + OUT));
|
|
var HOLD_START = IN;
|
|
var OUT_START = IN + HOLD;
|
|
var CONVERGE = Math.min(CONVERGE_BASE * envelopeScale, HOLD);
|
|
var DRIFT_START = HOLD_START + CONVERGE;
|
|
var DRIFT_WINDOW = Math.max(0, HOLD - CONVERGE);
|
|
|
|
gsap.set(stage, { opacity: 0, scale: 0.97 });
|
|
cursors.forEach(function (cursor) {
|
|
gsap.set(cursor.element, {
|
|
x: cursor.path.start[0] + "cqw",
|
|
y: cursor.path.start[1] + "cqh",
|
|
rotation: cursor.path.rotation[0],
|
|
opacity: 0,
|
|
scale: 0.92,
|
|
});
|
|
});
|
|
|
|
var tl = gsap.timeline({ paused: true });
|
|
|
|
// IN: emphatic layer settle and deterministic per-cursor reveal.
|
|
tl.to(stage, { opacity: 1, scale: 1, duration: STAGE_IN, ease: "power3.out" }, 0);
|
|
cursors.forEach(function (cursor, index) {
|
|
tl.to(
|
|
cursor.element,
|
|
{ opacity: 1, scale: 1, duration: REVEAL, ease: "power2.out" },
|
|
index * REVEAL_STAGGER,
|
|
);
|
|
});
|
|
|
|
// HOLD: authored sine convergence, then a finite center-zone loop.
|
|
if (CONVERGE > 0) {
|
|
cursors.forEach(function (cursor, index) {
|
|
var moveDelay = Math.min(index * MOVE_STAGGER, CONVERGE * 0.35);
|
|
tl.to(
|
|
cursor.element,
|
|
{
|
|
x: cursor.path.gather[0] + "cqw",
|
|
y: cursor.path.gather[1] + "cqh",
|
|
rotation: cursor.path.rotation[1],
|
|
duration: Math.max(0.001, CONVERGE - moveDelay),
|
|
ease: "sine.inOut",
|
|
},
|
|
HOLD_START + moveDelay,
|
|
);
|
|
});
|
|
}
|
|
|
|
if (DRIFT_WINDOW >= DRIFT_LEG_BASE) {
|
|
cursors.forEach(function (cursor, index) {
|
|
var driftDelay = Math.min(index * MOVE_STAGGER, DRIFT_WINDOW * 0.12);
|
|
var cursorWindow = Math.max(0, DRIFT_WINDOW - driftDelay);
|
|
var driftLegCount = Math.max(1, Math.floor(cursorWindow / DRIFT_LEG_BASE));
|
|
var driftLeg = cursorWindow / driftLegCount;
|
|
var driftRepeat = Math.max(0, driftLegCount - 1);
|
|
tl.fromTo(
|
|
cursor.element,
|
|
{
|
|
x: cursor.path.gather[0] + "cqw",
|
|
y: cursor.path.gather[1] + "cqh",
|
|
rotation: cursor.path.rotation[1],
|
|
},
|
|
{
|
|
x: cursor.path.drift[0] + "cqw",
|
|
y: cursor.path.drift[1] + "cqh",
|
|
rotation: cursor.path.rotation[2],
|
|
duration: driftLeg,
|
|
ease: "sine.inOut",
|
|
immediateRender: false,
|
|
yoyo: true,
|
|
repeat: driftRepeat,
|
|
},
|
|
DRIFT_START + driftDelay,
|
|
);
|
|
});
|
|
}
|
|
|
|
// OUT: asymmetric accelerated fade, while HOLD motion resolves.
|
|
tl.to(stage, { opacity: 0, duration: OUT, ease: "power2.in" }, OUT_START);
|
|
|
|
tl.seek(0);
|
|
|
|
window.__timelines = window.__timelines || {};
|
|
window.__timelines[compositionId] = tl;
|
|
})();
|
|
</script>
|
|
</div>
|
|
</template>
|
|
</body>
|
|
</html>
|
|
```
|
|
|
|
</Accordion>
|
|
|
|
{/* hf:generated-footer */}
|
|
|
|
Tagged `cursor` `pointer` `multiplayer` `collaboration` `presence` `loop` `prove`.
|
|
|
|
## Related topics
|
|
|
|
- [Browse the complete Catalog](/catalog)
|
|
- [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
|
|
- [Build a richer composition](/go-further)
|